Merge "Fixes expose of staticmethod"

pecan/tests/test_util.py

@@ -17,6 +17,11 @@ class TestArgSpec(unittest.TestCase):
             def index(self, a, b, c=1, *args, **kwargs):
                 return 'Hello, World!'
 
+            @staticmethod
+            @expose()
+            def static_index(a, b, c=1, *args, **kwargs):
+                return 'Hello, World!'
+
         return RootController()
 
     def test_no_decorator(self):
@@ -24,6 +29,10 @@ class TestArgSpec(unittest.TestCase):
         actual = util.getargspec(self.controller.index.__func__)
         assert expected == actual
 
+        expected = inspect.getargspec(self.controller.static_index)
+        actual = util.getargspec(self.controller.static_index)
+        assert expected == actual
+
     def test_simple_decorator(self):
         def dec(f):
             return f
@@ -32,6 +41,10 @@ class TestArgSpec(unittest.TestCase):
         actual = util.getargspec(dec(self.controller.index.__func__))
         assert expected == actual
 
+        expected = inspect.getargspec(self.controller.static_index)
+        actual = util.getargspec(dec(self.controller.static_index))
+        assert expected == actual
+
     def test_simple_wrapper(self):
         def dec(f):
             @functools.wraps(f)
@@ -43,6 +56,10 @@ class TestArgSpec(unittest.TestCase):
         actual = util.getargspec(dec(self.controller.index.__func__))
         assert expected == actual
 
+        expected = inspect.getargspec(self.controller.static_index)
+        actual = util.getargspec(dec(self.controller.static_index))
+        assert expected == actual
+
     def test_multiple_decorators(self):
         def dec(f):
             @functools.wraps(f)
@@ -54,6 +71,11 @@ class TestArgSpec(unittest.TestCase):
         actual = util.getargspec(dec(dec(dec(self.controller.index.__func__))))
         assert expected == actual
 
+        expected = inspect.getargspec(self.controller.static_index)
+        actual = util.getargspec(dec(dec(dec(
+            self.controller.static_index))))
+        assert expected == actual
+
     def test_decorator_with_args(self):
         def dec(flag):
             def inner(f):
@@ -66,3 +88,8 @@ class TestArgSpec(unittest.TestCase):
         expected = inspect.getargspec(self.controller.index.__func__)
         actual = util.getargspec(dec(True)(self.controller.index.__func__))
         assert expected == actual
+
+        expected = inspect.getargspec(self.controller.static_index)
+        actual = util.getargspec(dec(True)(
+            self.controller.static_index))
+        assert expected == actual

pecan/util.py

@@ -23,6 +23,12 @@ def getargspec(method):
 
     func_closure = six.get_function_closure(method)
 
+    # NOTE(sileht): if the closure is None we cannot look deeper,
+    # so return actual argspec, this occurs when the method
+    # is static for example.
+    if func_closure is None:
+        return argspec
+
     closure = next(
         (
             c for c in func_closure if six.callable(c.cell_contents)